Finding the Fourth Proportional to 1,665,122.19, 2,498,679.73 and 718,492.91
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Solution
The fourth proportional to 1,665,122.19, 2,498,679.73 and 718,492.91 is: 1,078,169.33
Step by Step Solution
- Step 1: Write the proportion equation
1,665,122.19 : 2,498,679.73 = 718,492.91 : x - Step 2: Convert to fraction form
1,665,122.19/2,498,679.73 = 718,492.91/x - Step 3: Cross multiply
1,665,122.19x = 2,498,679.73 × 718,492.91 - Step 4: Simplify right side
1,665,122.19x = 1,795,283,670,365.71 - Step 5: Solve for x
x = 1,795,283,670,365.71/1,665,122.19 - Step 6: Final answer
x = 1,078,169.33
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.